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參數(shù)資料
| 型號： | PE-68629 |
| 廠商： | Exar Corporation |
| 英文描述： | E3/DS3/STS-1 LINE INTERFACE UNIT |
| 中文描述： | E3/DS3/STS-1線路接口單元 |
| 文件頁數(shù)： | 24/55頁 |
| 文件大?。?/td> | 608K |
| 代理商： | PE-68629 |
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XRT7300
E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.1.1
á
20
shape and width to meet the applicable pulse
template requirement.
5.
The LOS Declaration/Clearance Criteria is estab-
lished.
2.0
Figure 1 indicates that the Transmit Section of the
XRT7300 consists of the following blocks:
Transmit Logic Block
Duty Cycle Adjust Block
HDB3/B3ZS Encoder
Pulse Shaping Block
The purpose of the Transmit Section in the XRT7300
is to take TTL/CMOS level data from the terminal
equipment and encode it into a format that can:
1.
be efficiently transmitted over coaxial cable at E3,
DS3 or STS-1 data rates.
2.
be reliably received by the Remote Terminal at
the other end of the E3, DS3 or STS-1 data link.
THE TRANSMIT SECTION
3.
comply with the applicable pulse template
requirements.
2.1
T
HE
T
RANSMIT
L
OGIC
B
LOCK
The purpose of the Transmit Logic Block is to accept
either Dual-Rail or Single-Rail (a binary data stream)
TTL/CMOS level data and timing information from the
Terminal Equipment.
Accepting Dual-Rail Data from the Terminal
Equipment
The XRT7300 accepts Dual-Rail data from the Termi-
nal Equipment via the following input signals:
TPDATA
TNDATA
TCLK
Figure 10 illustrates the typical interface for the trans-
mission of data in a Dual-Rail Format between the
Terminal Equipment and the Transmit Section of the
XRT7300.
F
IGURE
10. T
HE
T
YPICAL
I
NTERFACE
FOR
THE
T
RANSMISSION
OF
D
ATA
IN
A
D
UAL
-R
AIL
F
ORMAT
F
ROM
THE
T
RANS
-
MITTING
T
ERMINAL
E
QUIPMENT
TO
THE
T
RANSMIT
S
ECTION
OF
THE
XRT7300
Exar E3/DS3/STS-1 LIU
(E3/DS3 or STS-1
Framer)
Terminal
Equipment
(E3/DS3 or STS-1
TxPOS
TxNEG
TxLineClk
Block
Transmit
Logic
Block
TPDATA
TNDATA
TCLK
F
IGURE
11. H
OW
THE
XRT7300 S
AMPLES
THE
D
ATA
ON
THE
TPDATA
AND
TNDATA I
NPUT
P
INS
TCLK
TPDATA
TNDATA
Data 1 1 0 0
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| PE-68629NL | 功能描述:變壓器音頻和信號 TRANSFORMER SGL RoHS:否 制造商:Skyworks Solutions, Inc. 頻率范圍:810 MHz to 960 MHz 初級線圈阻抗: 次級線圈阻抗: 絕緣電壓:23 dB 工作溫度范圍:- 40 C to + 85 C 端接類型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 產(chǎn)品:Splitters and Combiners |
| PE-68630 | 功能描述:變壓器音頻和信號 XFMR RoHS:否 制造商:Skyworks Solutions, Inc. 頻率范圍:810 MHz to 960 MHz 初級線圈阻抗: 次級線圈阻抗: 絕緣電壓:23 dB 工作溫度范圍:- 40 C to + 85 C 端接類型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 產(chǎn)品:Splitters and Combiners |
| PE-68630NL | 功能描述:變壓器音頻和信號 TRANSFORMER SGL RoHS:否 制造商:Skyworks Solutions, Inc. 頻率范圍:810 MHz to 960 MHz 初級線圈阻抗: 次級線圈阻抗: 絕緣電壓:23 dB 工作溫度范圍:- 40 C to + 85 C 端接類型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 產(chǎn)品:Splitters and Combiners |
| PE-68631 | 功能描述:變壓器音頻和信號 XFMR RoHS:否 制造商:Skyworks Solutions, Inc. 頻率范圍:810 MHz to 960 MHz 初級線圈阻抗: 次級線圈阻抗: 絕緣電壓:23 dB 工作溫度范圍:- 40 C to + 85 C 端接類型:SMD/SMT 尺寸:6 mm L x 4.9 mm W x 1.6 mm H 產(chǎn)品:Splitters and Combiners |
| PE-68636 | 制造商:Pulse 功能描述:#NOTFORNEWDESIGN-SEEPE-68836# - Bulk |
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